Fiber container with lined opening



Dec. 7, 1954 H. A. BERGSTROM 2,696,339

v FIBER CONTAINER WITH LINED OPENING Filed June 15, 1950 FiG.1

Siwenfor v Harddfsbergsirom carded fiber.

United States Patent 1 2,696,339 FIBER CONTAINER WITH LINED OPENING Harold A. Bergstrom, Van Wert, Ohio, assignor to Continental Can Company, Inc., New York, N. Y., a corporation of New York Application June 15, 1950, Serial No. 168,237

3 Claims. (CI. 2294.5)

The invention relates generally to container structures, and more particularly to containers adapted for receiving yarn roving or sliver, and it primarily seeks to provide a novel container structure having a wide open top equipped with a smooth ring lining the throat thereof and effective to assure against the catching of the yarn roving or silver in roughened, wrinkled or cracked surface portions at the throat or opening at the container top.

It is a purpose of the invention to provide a form of, container particularly adaptable to the handling of yarn roving or sliver. The sliver comprises more or less continuous strands of wool, cotton or other fiber, in a loose untwisted condition, ready for roving or slubbing, and the roving comprises the slightly twisted sliver of the Obviously the yarn roving is somewhat delicate and readily torn, and in the untwisted sliver form is very delicate and very easily torn. Also, the yarn or sliver is light, fiuffy and expansive in mass, and it is quite desirable to provide containers for receiving the same which have wide open tops or throats through which the yarn or sliver mass can be inserted or removed. It will be equally apparent that should the container top throat have roughened surface portions, cracks, crevices or wrinkles, the delicate yarn or sliver would catch therein and be torn.

An example of a container having a desirably wide open top or throat adapted for the purpose stated is disclosed in U. S. Letters Patent 2,391,774 issued to Hans A. Eggerss on December 25, 1945, and in the application for U. S. Letters Patent filed on October 29, 1947, by Harry A. Scott et al. and identified by Serial Number 782,864 which eventuated into U. S. Letters Patent 2,579,974 on December 25, 1951. This example container is formed with a generally cylindrical body of fiber board or comparable material, and its wide open top is reinforced by a metal ring surrounding the outer surface of the body and curled inwardly over and indented in the upper edge extremity of the body. Adjacent the top edge extremity of the body the metal ring and body stock are reshaped, by rolling contact between shaping rolls or the like, to provide an inwardly extending, rounded throat defining bead, and an outwardly opening groove for conveniently receiving the fingers of a handler or a locking ring or other device effective to hold a cover in place. While this example structure is effective to provide the desired wide open throat, the reshaping of the body stock in forming the throat defining bead results in wrinkling and cracking or rupturing of inwardly directed surface portions of the bead which are objectionable in the particular use in question by way of providing crevices or cracks in which the delicate yarn roving or sliver can catch and tear during introduction thereof into or removal thereof from the container. Therefore, it is an object of the present invention to provide a container of the character stated having a wide open top or throat defined by an inwardly directed bead, and to equip said bead with a smooth lining ring which will assure against the presentation of any roughened surface portions, cracks or crevices in which delicate yarn roving or sliver or comparable easily torn materials may catch and tear.

An object of the invention is to provide a container structure of the character stated wherein the bead lining ring is generally half circular or C-shaped in cross section and is in the form of a snap ring having an inherent tendency to straighten out which is effective to cause the ring to be self-retaining within the bead, and yet readily removable.

Another object of the invention is to provide a container structure of the character stated wherein the lining ring is a split ring, flexible and resilient and self-retaining 30 within the bead with its ends abutted.

Another object of the invention is to provide a con tainer structure of the character stated wherein the lining ring is formed in one piece of readily flexed, smooth material so that it will present an internally smooth unbroken surface and be readily insertable in the bead by cocking and flexing.

With the above and other objects in view that will hereinafter appear, the nature of the invention will be more clearly understood by reference to the following detailed description, the appended claims and the several views illustrated in the accompanying drawing.

In the drawing:

Figure 1 is a side elevation partially in vertical cross section illustrating the top portion of a container embodying the invention.

Figure 2 is a fragmentary, enlarged vertical cross section through one side of the container structure illustrated in Figure 1.

Figure 3 is a plan view and part longitudinal section illustrating one manner of forming the liner ring structure, the same being formed from a straight tube cut in half to provide two ring elements semi-circular in cross section.

Figure 4 is a vertical cross section illustrating the top portion of a container such as is shown in Figure 1 with a bead liner ring in the form of a continuous unbroken circle in the process of being inserted therein.

In the example of embodiment of the invention herein disclosed, there is illustrated the top portion of a container structure comprising a body 5 of generally cylindriform shape and formed of fiber board or comparable material. A metal reinforcing band 6 surrounds the external surface of the body at the top portion thereof and is curled inwardly over the top edge extremity of the body as at 7 and indented as at 8 in the inner wall surface at said upper edge extremity.

After the mounting of the reinforcing band on the body in the manner above described both the body and the band are reshaped as by rolling contact between shaping rolls or the like to provide an inwardly extending bead 9 and an outwardly opening groove 10, the latter being defined in part by an upper horizontal shoulder 11. It has been found that the reshaping of the body 5 and reinforcing band 6 and the resultant rolling and stretching of the inwardly presented surface 12 of the bead causes a wrinkling and cracking at portions of said surface, and the crevices thus formed are found very objectionable when the container structures are used in receiving yarn roving or sliver. The yarnroving is somewhat delicate and readily torn, and in the untwisted sliver form is very delicate and very easily torn. It will therefore be apparent that contact with the inwardly presented surface 12 of the bead 9 of such yarn or sliver during the placing of the same in the container, or withdrawal thereof from the container would result in engagement of the yarn or sliver in the crevice in said surface and the tearing of the yarn or sliver. In order to prevent this tearing of yarn or sliver or comparable material during its introduction into or removal from the container, a liner ring 13 is mounted within the bead 9 so as to cover the inwardly presented surface thereof in the manner clearly illustrated in Figures 1 and 2.

The liner ring 13 is semi-circular, or approximately semi-circular in cross section and is formed of any suitable material which will present a hard smooth surface for contact by the yarn or sliver, thereby to provide a surface devoid of any crevice or any roughened portions which would snag and tear delicate yarn or sliver or comparable material upon being contacted thereby. While any suitable material may be used in the formation of the liner ring 13, it has been found that satisfactory rings can be made of plastic material such as cellulose acetate or a styrene copolymer, or of any suitable material presenting a suitably smooth surface, of which stainless steel is an example. It is to be understood that the material of which the liner ring is formed will present a surface sufficiently hard and abrasive resistant to preclude the possibility of the formation of grooves or roughened portions thereon by continuous passage of roving or other contained materials thereover.

It is to be understood that the liner ring may be formed as a continuous one piece ring structure, or it may take the form of a split ring preferably having lts ends abutted as at 14, but which may have its ends overlapped if desired. In any event it is to be understood that the ring will be flexible and resilient so that ltmay readily be inserted into position within the bead 9"and will be self-retaining therein. 1 I

One satisfactory manner of forming the rings is by taking straight lengths of plastic tube stock 15 such as are shown in Figure 3, and slitting the same along the axis as 'at 16. Anindividual ring section tube length may then be inserted in a container by applying an end thereof against the container bead with its concave face generally conforming to the convex inner face of said bead, and then'progressively applying the remainder of the ring section in like manner against said'bead until the complete lining thereof is completed by bringing the other end of the ring section into endabuttingrelation to the first applied end as shown at 14 in Figure 1. The flexible and resilient liner pieces will properly conform to and grip the inwardly presented surface of the head 9, and because of the tendency 'of the material to return to its straight condition, the ringwill constantly tend to expand and will be self-retaining within the bead 9. The ring will cover therough surfaces,'wrinkles'or cracks in the inwardly directed surface 'of'the bead 9 and will present a smooth surface devoid of such crevices or roughened portions for contact by yarn roving or sliver being moved inwardly or outwardly through the wide open throat at the top of the container defined by the bead 9 and its ring lining. Y

Another satisfactory manner of forming the rings .is by extruding the generally'C-shaped body thereof through a suitable shaping die, preferably curling the same. to the desired bead fitting circumference or approximately thereto, and dividing the same into properringlengths, the division being accurately effected so as to provide the desired ring sections with end abutting extremities. The C-section can be so formed as to space the edge extremities of the section apart a lesser distance than the width of the bead portion to be shielded thereby so that said edges will gripthe bead between them and the resilient body will be self-retaining within the bead with its end extremities in abutting relation. If desired the abutting endextremities may be backed up byfa bridge piece suitably adhered across the abutting ends of the body, this in effect forming a continuous ring which can be insertedas such within the bead to be lined thereby.

It is known that the paper body stock-of which the beads 9 are formed is subject to expansion and contraction under conditions which will not materially. affect the liner rings, and hence by having the rings shaped so as to grip the beads in themanner shown and described, without necessarily conforming snugly and fully throughout the whole cross section of the opposing faces of the ring and bead, the desired secure self retention of (the rings within the heads is assured under all conditions of use.

In Figure 4 of the drawing there is illustrated a slightly modified form of the inventionin which'the ring is initially formed inone piece, or in other words is a continuous unbroken circle. This continuous ring 17 may be inserted in the head in cocked position as indicated in Figure 4, and because of its inherent flexibility and resiliency may be flexed so as to ease the lower edge portion thereof down through the bead tov be lined thereby, and as the ring slips into position, its. resiliency will cause it to assume its normal, intended bead lining position, and the ring will be self-retaining in this position. The present invention has to do only with the, provision of wide open containertop structure as hereinbefore described, including the smooth surfaced bead lining ring, but it is to be understood that the bottom of the con tainer will be provided with, a closure of any acceptable form. Should it be desired to use the container in the shipment of yarn roving, a suitable closure will be provided at the top. This closure may take the form illustrated in the patent or patent application referred to hereinabove, or may take the form of any other acceptable closure, such as the mere stretching of a fabric over the open top of the container and the securing thereof by placing a tie about said closure within the groove 10.

The .term smoothas employed in the appended claims -isto beconstrued 4 as limitedto -or defining;- a'isur face which is devoid of any crevices or roughened por- 4 tions which would snag and tear yarn or sliver or the like upon being contacted thereby.

While example forms of the invention have been (118- closed in detail herein it is to be understood that the form and material of the ring may be variously changed without departing from the spirit and scope of the invention as defined in the appended claims.

I claim:

1. In a container structure for receiving delicate yarn roving, sliver or comparable material, a generally cylindriform body having closely adjacent its open top an inwardly bent bead defining an openthroat through which the material is to be introduced into and removed from the container, and a facing ring overlying the 1nwardly directed portion of the bead and presenting a throat lining surface which is smooth and will not snag and tear yarn or sliver or the like upon being contacted thereby, said head being substantially semi-circular in cross section at its inwardly directed extremity, with SQId'Cl'OSS section arc struck from a center spaced inwardly from the outer diameter of the body a distance atleast as great as the radius of the arc, and said ring having asemicircular cross section for conforming to said bead extremity shape and being flexible and resilient and constantly tending to expand so 'as' to be. self-retaining on the bead.

2. In a container structure for receiving delicate yarn roving, sliver or comparable material, a generally cylindriform body having closely adjacent its open top an inwardly bentbead defining an open throat through which the material is to be introduced into and removed from the container, and a facing ring overlying the inwardly directed portion of the bead and presenting a throat lining surface which ,is smooth and will'not snag. and tearyarn or sliver or the like upon being contacted thereby, said head being substantially semi-circular in cross section at its inwardly directed extremity,- with said cross section arc struck. from a center spaced inwardly fromthe outer diameter of the body a distance at least as great as the radius of the arc, said ring having a semicircular cross section and being resilient and readily flexible across and about the circumference thereof and constantly tending to straighten out so as to be selfretaining and shape conforming on the bead extremity.

3. In a container structure for receiving delicate yarn roving, sliver orcomparable material, a generally cylindriform body havinglclosely adjacent its open top an inwardly bent bead defining an open throat through-which the material is to be introduced into and removed from the container, and a facing ring overlying the inwardly directed portion of the beadfand presenting a throat lining surface which is smoothand will not snag and tear yarn or sliver or the like upon being contacted thereby, said bead being substantially semi-circular in cross section at its inwardly directed extremity,with said cross section are struck from a center spaced inwardly from the outer diameter of the body a distance at least as great as the radius of the arc, said ring having a. semicircular cross section and being resilient and readily flexible 'across andabout the circumference thereof and constantly tending to straighten out so as to be self-retainmg and shape conforming on the bead extremity, and

constituting a split ring having a length for fitting within said head extremity with endjportions in'close abutting contact and so held by the inherent tendency of the ring to stralghten out.

References Cited in the file of this patent UNITEDSTATES PATENTS Number Name Date 941,562 Decker Nov. 30, 1909 1,582,489 Snell Apr. 27, 1926 2,255,725 Trescher Sept. 9, 1941 2,321,857 Rigerman June 15, 1943 2,389,897 Davis Nov. 27, 1945 2,408,253 Diebold Sept. 24, 1946 2,547,395 Jansen Apr. 3, 1951 2,579,974 Scott et a1 Dec. 25, 1951 2,619,125 Eickmeyer et a1 Nov. 25, 1952 FOREIG ATE TS' Number, r (Qountry "I Date-2' 1 3,536 GreatzBritain 'F'eb. 23., 1892 574,746 Great Britain Jan. 18, 1946 

